Imprinting apparatus



April 21', 1942.

A. w. METZNER IMPRINTING APPARATUS Filed Aug. 8, 1940 4 Sheets-Sheet 1 INVENTOR ATT/ORNEY April 21, 1942- A. w. METZNE R IMPRINTING APPARATUS 4 Sheets-Sheet 2 Y Filed Aug.8, 1940 Illlll INVENTOR' $4,? W/Vnz/n/[e ATT NEY April 1942- A. w. METZNER IMPRINTING APPARATUS Filed Aug. 8, 1940 4 Sheets-Sheet INVENTOR 15: hl/fzrz/vm Y WM ATTfJRNEY April 21, 1942.

A. w. METZNER IMPRINTING APPARATUS Filed Aug. 8, 1940 4 Sheets-Sheet 4 INVENTOR 15f rM/Vfiz/vm ATT RNEY Patented Apr. 21, 1942 IMPBINTING APPARATUS Albert W. Metzner, Dayton, Ohio, assignor to The Standard Register Com corporation of Ohio pany, Dayton, Ohio, at

Application August 8,1940, Serial No. 351,819

21 Claims. (01. ion-134.5)

matically reproduced by transfer under pressure to other contacting surfaces. It is to/be understood, however, that application of the invention rial for use therewith have feeding pins and matching holes at one-half inch intervals. Consequently, the periphery of a pin wheel feeding is not necessarily limited to the specific mechanism nor to the purpose described. Commercialrecords are ordinarily written with line spacings of one-third inch between succeeding lines. Writing, imprinting and record making apparatus are ordinarily correspondingly constructed with feed device to advance the material operated upon through successive feeding movements of threeto the inch.

The feed device in record making machines of the type illustrated ordinarily comprises a, feed roll, the circumference of which is a multiple of one-third inch, with which frictional pressure rollers coact to advance th record material proportionately to the degree of rotation of the feed roller. In practice, the feed roller of the particular apparatus herein illustrated possesses a circumference of substantially 3566+ inches and is operative to advance the strip through elevenimprinting position. It is therefore necessary to relax the frictional feeding engagement of the roller with the strip from time to time and man'- uaily readjust the strip into proper synchronism with the feeding and imprinting mechanism.

To insure accurate registry and alignment at all times and thus obviate the necessity for periodic readjustment of the strip, it is highly desirable that a positive pin type feeding device engagea-be in marginally punchedholes in the strip of material be employed. However, regulation pinwheels and marginally punched record mateunit must be an exact multiple of one-half inch, hence either greater or less than the periphery of the original frictional feed roll for which it is to be substituted.

However, the advancement of the strip at each operation must remain onethird inch to agree with the conventional line spacing of legends upon the strip. There is therefore presented a feeding problem to adapt and harmonize a pin type feeding device having a complete cycle comprising a multiple of one-half inch with a driving mechanism adapted to a complete cycle which is a multiple of one-third inch. If the frictional feed roller and the pin wheel, which is to be substituted therefor, were both of a peripheral size which is a common multipl of one-third and one-half inch, that is to say, even inches, the solution would be easy. Since the apparatus will not accommodate a materially enlarged unit and a smaller unit would not be practical, a pin wheel unit is adopted which is nearest the size of the friction roller. Transmission mechanism is provided to drive such pin wheel difierentially from the drive mechanism initially utilized to actuate the friction roller in order that the required advancement of one-third inch at each operation of thepin wheel may be maintained. Such is the purpose and result achieved by the present construction. v

The primary object of the present invention is to embody in an imprinting or record making apparatus which is especially adapted for frictional advancement of a continuous strip of material through successive. prescribed feeding movements; a substitute pin type feeding device adapted to advance the strip of material like distances under influence of the original actuating means. i

A further object of the invention is to enable a continuous record strip to be progressively advanced through succeeding. step-by-step movements of uniform extent and succeedingv prescribed relatively spaced record areas thereof automatically registered accurately at 'an-imprinti g position'without the necessity of periodic readjustment.

A further and important object of the invention is to enable existing frictional feed imprinting apparatus to b easily and quickly transformed into a'pin type positive feed machine.

A further object of the invention is to provide an offset transfer imprinting apparatus of the character described, having an efficient pin type feeding mechanism adapted to advance a master record strip through succeeding steps of one-third inch each. I

, A further object of the invention is to obviate the necessity of periodic readjustment of the record strip to maintain registry of prescribed record areas with the imprinting position.

A further object of the invention is to simplify the transformation of a frictional feed record making apparatus into dual positive pin type feed and frictional feed apparatus.

A further object of the invention is to enable the incorporation of a postiive pin type feed mechanism in a frictional feed imprinting apparatus with minimum disarran'gement or disturbance of the imprinting mechanism.

A further object of the invention is to provide in an imprinting or record making apparatus of the character described dual optionally selective frictional and positive pin type feeding means.

A further object of the invention is to provide in an imprinting apparatus strip feeding means having the advantageous structural features and inherent meritorious characteristics herein mentioned.

With the above primary and other incidental objects in view as will more fully appear in the specification, the invention intended to be pro tected by Letters Patent consists of the features of construction, the parts and combinations thereof, and the mode of operation, or their equivalents, as hereinafter described or illustratedin the accompanying drawings.

In the drawings, wherein is shown the preferred but obviously not necessarily the only form of embodiment of the invention,

Fig. 1 is a top plan view. 7

Fig. 2 is a sectional view on line 2-2 of Fig. 1.

Fig. 3 is a detail perspective view of the frictional pressure roller and energizing electric switch control mechanism.

Figs. .4 and 5 are perspective views of a portion of the apparatus showing the throw-out means for the friction feed in alternate positions of adjustment.

Fig. 6 is a detail plan view of the p rts shown in Figs. 4 and 5.

Fig. 7 is a perspective view of the intermittent Fig. 10 is a longitudinal sectional view thereof,

Fig. 11 is an end elevation of the sectional removable frictional feed roller.

Fig. 12 is a transverse sectional view thereof.

Fig. 13 is a view showing a portion of the perforated, previously inscribed, master record strip.

Like parts are indicated by similar characters of reference throughout the several views.

The particular imprinting apparatus illustrated in the drawings, which, per se, forms no part of the present invention, comprises an offset transfer posting machine wherein previously inscribed legends are automatically transferred from a continuous master strip to cards, sheets or other impressionreceiving material. The master strip which previously has been inscri from a supply packet through a step-by-step movement past a treatment position at which it is moistened or otherwise preconditioned preparatory to passing beneath a presser head, by which the treated inscribed surface is forcibly pressed against an impression receiving surface to effect transfer of an inscribed legend. Whereas the advancement has heretofore been effected by a frictional feeding roll only, in the present instance dual optionally selective feeding means are provided. These include a pin type feeding device engageable in marginally punched holes in the master record strip for use in those instances wherein accurate registry of the'transfer imprints is necessary, and a frictional feed of the type originally provided for use with master record strips devoid of the marginal feed holes on those occasions when close registry is not required.

In the drawings ll are the side frames of the machine, between which is positioned a table 2 over which the previously inscribed master record strip Sis advanced from a supply packet i. The supply packet is zig-zag foldedand contained in an inclined pan or holder 5. It is withdrawn therefrom over a guide plate 6 and over and under certain transverse guide rods I. The strip guide plate 6 is a part of the original structure, to the under side of which the pan or holder 5 has been added, thus forming a pocket-like magazine for the supply packet 4.

The strip 3 passes from the guide plate 6 vbeneath a curved guide flange 8 and thence over a false table 9 and beneath a trough-like holder in containing a moistened treatment pad II. The pad II is kept wet with water or with a suitable solvent or treatment solution by which the copyin'g ink or carbon with which the strip is inscribed is rendered communicable for transfer of the inscribed indicia to a sheet or card inserted through the space I 2 intermediate the table 2 and false table 9 to a point beyond the false table 9.

Moisture is transferred from the pad II to inscribed areas of the strip by a ribbon I2.

The strip 3, which is provided with marginally punched feed holes 3a located at half inch intervals, is advanced beneath a reciprocatory presser head l3 by a pair of relatively spaced revoluble pin wheels 14 having engagement in the marginal holes 3a in the strip. In the present disclosure the pin wheels have been substituted for the original friction roll. The strip advances in conformity with the pin wheels throughout approximately half their peripheries and beneath peripherally grooved retainer rollers IS on a counter shaft It. The grooved rollers l5 bridge the feeding pins of the pin wheels II to retain the paper loosely in engagement therewith. A

plurality of relatively spaced strip supporting discs I50 are interposed between the strip retaining rollers I 5 on the shaft I 6. The counter shaft I8 is adjustably mounted in slotted plates I! at each side of the machine within slots I8, of

which the counter shaft I6 is movable toward and from the pin wheels to enable the more convenient engagement of the marginally punched strip with the pin wheels. The shaft and grooved retainer rollers i5 and discs, l5a may be temporarily retained in retracted position by engagement of the ends of the shaft IS in offset upper terminals of the slots It. The frictional feed roller before mentioned was mounted on the shaft l9 disposed axially with the added pin wheels I, and operatively engaged on its under with copying ink or transfer carbon, is advanced side by a series of axially aligned pressure rollers frames 2| carried by a transverse 'shaft 22, and

urged into frictional pressure engagement with the underside of the original feed roller or .the

portion of the strip interposed therebetween by retractile springs 23 connecting rearwardly extending arms-24 of the swinging frames 2| with fixed portions of the structure. The swinging frames are manually oscillated into and out of pressure engagement with the friction roller by a rock shaft 25 extending transversely of the machine and having thereon a hand lever 28 movableto alternate positions.

The rock shaft 28 is flattened or provided with notches 21 at spaced intervals coincident with the arms 24 of the swinging frames 2|, whichin one position of partial rotation of the shaft 25 affords clearance sufllcient to permit oscillation of the frames 2| until the pressure rollers carried thereby engage the under side of the friction roller under influence of the springs 22.

' However, upon partial rotation of the shaft by the hand lever 26 the flattened or notched surface is moved away from the under sides of the arms 24 and-the engagement of the full convex surface of the shaft 25 therewith cams the arms 24 upwardly against the tension of the springs 23, thereby swinging the frame 2! to retract the pressure rollers 20. Beneath the shaft 22 on which the roller carrying frames 2| are mounted is a third rock shaft 28 connected forrocking motion in unison with the manually actuated rock shaft 25.

The rock shaft 28 carries at one end a radial ear 29 connected by a retractile spring 38 with a fixed portion of the machine frame; (See Figs. 1 and 6.) The spring tends to rotate the shaft 28 in one direction. Carried by the shaft 28 is an oscillatory frame 2| extending beneath the swinging frames 2|, and having at its free edge an upturned guide lip 22, which facilitates the insertion of the master strip. One or more of the or pin type. are actuated by an electric motor having driving engagement with the left hand end of shaft l9, as viewed in Fig. 1. As originally constructed, the driving motor was energized and de-energized in unison with the movement of the swinging frames 2| and pressure rollers 20 into and out of operative relation.

The rock shaft 28 carries a rock arm 34 (Fig. 3) which engages with a second arm 25 on a shaft 36 to transmit oscillatory motion to the latter.

contact arm 21 to open the circuit closer 28 and so arrest the actuating motor. Upon reverse movement of the hand lever 28 to the opposite limit of its range of movement, the flats or notches 21' of the shaft-28 being brought into the path of movement of the swinging frame arms 24 permit the frames to move the rollers into cooperating relation under influence of the springs 28, and the contact arm ll is retracted to permitsimultaneous closing of the switch 24.

As before mentioned, the original friction feed roller is entirely removed, but the coacting pressure rollers 20 and their carrying frames 2| are retained. For the original frictional feed roller there is substituted a combination friction and pin feed assembly, wherein a plurality of aligned ax ally adjustable roller sections are interposed between a pair ofaligned axially adjustable pin wheels. The hand lever 26 and rock shaft 25 at one limit of their movement render both the pressure rollers 20 and the electrical circuit closer "inoperative, and at the opposite limit of their adjustment both the pressure rollers 2|! and circuitbreaker 28 are rendered simultaneously operative. In the original arrangement and operation the frictional pressure rollers are always engaged when the apparatus is operative, and when the rollers 20 are retracted to enable manual readjustment of the strip material, the electrical actuating mechanism is automatically de-energized. In the improved construction forming the subject matter hereof, stop means is provided by which the hand lever 28 and rock shaft 25 are given a third operative position intermediate the original limits 3 of their range of movement, wherein the swinging frames 2| will be arrested with the rollers 20 in retracted inoperative position before the electrical control switch, 39 is opened. In this intermediate position the-pressure rollers 28 are inoperative while the electrical driving means remains operative.

To so arrest theparts in such intermediate relation,"a stop member 40 pivoted at II to a fixed portion of the machine is movable into and out of the-path of movement of the hand lever 26 to arrest the hand lever in such intermediate position. The stop I! has on its .under side an ad- Justable contact screw 42 engageable with a portion of the machine, as shown in Fig. 4, to enable theposition of the stop to be minutely varied. This enables quite accurate determination of the position of the hand lever 28 and coacting parts when arrested by the stop. When the friction feed is to be employed as hereafter mentioned, the stop 48 is wlthdrawn from the path of the handle 28, as shown in Fig.5.

tional feed operation, the original friction roller The shaft 38 carries a contact arm 31 engageable I with one spring contact member 28 of an electric switch 39, by which the actuating motor for the machine is energized.

The construction is such that upon'manual adjustment of the hand lever 28 in one direction to the limit of its movement (as shown Figs. 2 and 5) the roller carrying frames 2| are retracted and the pressure rollers 20 are withdrawn to inoperative position. This enables the strip to be manually readjusted from time to time to restore it to registry with the transfer mechanism. By such movement of the hand lever 26 and rock shaft 25, the shaft 28' is rocked to cause the shaft l9 extending transversely of the machine is retained. The original driving mechanism for actuating this shaft I! through a one-eleventh rotation at each operation is not disturbed.

Telescopically mounted on the shaft I9 is a tubular sleeve 43 extending substantially the full width of the machine. Mountedfor to and fro axial adjustment upon the :tubular sleeve 43.

but revoluble'in unison therewith, are relatively spaced pin wheels M, which by their axial adjustment may be adapted to anyiwidth of master record strip, in the marginal feed holes 3a of which the pin wheels progressively engage.

Located intermediate the pin wheels I4 and also axially adjustable on the sleeve 43 are a plurality of friction rollers 44, cooperable with the friction rollers 20 to advance the record material independently of the pin wheels, in the event an unpunched record strip is used.

The friction rollers 44 are relatively short, and are preferably, but not necessarily, longitudinally split for convenient removal from and re-engagement with the sleeve 43.. The sleeve 43 is differentially actuated in unison with the shaft l9 by means of a back gear arrangement, wherein a gear pinion 45 fast upon the sleeve 43 and a similar gear pinion 45 rotating in unison with the shaft l9, but having a diiferent number of teeth than the gear 45, simultaneously mesh with a common idler gear 41. The shaft [9 is actuated through a step-by-step movement of eleven steps to each full rotation by mechanism illustrated in Fig. 7. As there shown, a motor 48 carries a cam disc 45 engaged by the roller 50 upon a rock arm Thearm 5| is mounted on a rock shaft 52 having at its end a cam segment 53, which is a limiting stop for an oscillatory spring actuated arm 54 subject to influence of the spring 55. The arm 54 is connected by a link 56 with an oscillatory arm 51 carrying a pawl 58 which engages a notched disc or ratchet wheel 59 on the shaft l3. As the disc 49 is rotated, the rocking of the shaft 52 and with it the cam segment 53 enables a to and fro oscillation, of the rock arm 54 under influence of the spring 55 in one diection and in reverse direction against the tension of such spring by the cam 53. The to and fro motion of the rock arm 54 is transmitted through the link 55. to the pawl and ratchet operating means 58-59 to intermittently actuate the shaft l9 through a stepby-step rotation. The rotation of the shaft I9 carries with it the gear pinion 48 which is transmitted to the idler 41 and thence back to the gear pinion 45 carried by the sleeve 43. The gears 45 and 46 having different numbers of sembly, shown in Fig. 8, for the original friction roller, the machine is adapted for positive feeding of marginally punched record material having standard half inch punching and alternative frictional feed of material without feed holes.

In Figs. 9 to 12 is illustrated a form of detachable friction roll 44, which is formed in two segmental sections. The roll 44 includes a pair of axially adjustable mounting heads 62, each comprising a pair of segmental sections 530 and 52b, pivotally interconnected one to the other by means of an arcuate link 63, one end of which ,is fixedly attached to one section by the rivets or screws 64 and pivoted to the other section at 55. There is sufficient clearance at 55 between the sections to enable relative swinging motion thereof toward and from each other. The head sections are formed with peripheral flanges 51 which are rabbeted and undercut as at 68 and 33 to receive the correspondingly shaped ends of the body of the roll. The roll body comprises an inner rigid metallic core 10 and a concentric peripheral cover ll of rubber or other analogous material. The ends of the metallic core are shaped to conform to the inner rabbeted faces of the head flanges G1. The roller body is separable on longitudinal division lines into two semicylindrical segmental sections having rabbeted overlapping longitudinal joints I2. The margins of the cover portions II have overlapping interlocking engagement at 13 in the offsets of such joints. By interposing the matching roll sections between the axially adjustable heads and pressing the latter one toward the other into interlocking engagement of the flanges 61 with the ends of the roll segments, the latter may be secured in assembled relation and so held by tightening set screws 74 in the hubs of the roll heads into engagement with the sleeve 43.

teeth operate to rotate the sleeve 43 diiferentially from that of the shaft I9.

tation is at such rate as to still advance the record strip the same lineal distance or line spacing at each operation, but because the pin wheels are necessarily of a different diameter from that of the original friction roller, to accommodate the standard one-half inch spacing of the feeding pins, in this case having a circumference of three and a half inches as compared with three The differential roand two third inches of the original friction roller, the pin wheels rotate slightly more. than one full rotation for each exact rotation of the shaft 19. Thus, the mechanism illustrated in Fig. '7 for transmitting eleven partial rotations to the shaft i5 simultaneously transmits eleven movements totaling more than a complete rotation of the pin wheels, but resulting in advancement of the record strip exactly the same distance at each operation to effect the same line spacing of the record strip.

The gear pinion is connected with the drive shaft l3 through a conventional variable clutch device (Figs. 1 and 6) on the left hand end of the shaft I9 and coupled with the gear 45 by a sleeve 6|. The construction is such that by disengagement of the variable clutch (not shown) and rotation of the variable clutch knob 53 the gear 46 may be rotatively adjusted relative to the drive shaft [9 to correct any error in registry and to sychronize the feed operation with the impression mechanism.

Without materially changing the construction or operation of the original machine, other than the substitution of the pin wheel and roller as- It is to be understood, however, that solid or fixed rolls may be employed, or that a single 101111: 'roll may be used in lieu of the plural short ro From the above description it will be apparent that there is thus provided a device of the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detailconstruction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

' While in order to comply with the statute, the

invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific features shown, but that the means and construction herein disclosed comprise the preferred form of several modes of putting the invention into eifect, and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims.

Having thus described my invention, I claim:

1. In a transfer posting machine wherein a continuous record strip is advanced step by step past an imprinting position, a pin wheel feeding device engageable in marginally punched holes in the strip for advancing the strip through a step-by-step movement, a frictional roller disposed in concentric relation with the pin wheel, frictional pressure rollers cooperative with the first mentioned frictional roller for advancing record material past the imprinting position independently of the pin wheel. electrically driven actuating. means common to the pin wheel and frictional feed roller, throymut means operative to simultaneously adjust the eoacting frictional rollers to inoperative relation and disable \the actuating means and throwout limit means for maintaining theactuating means in operative condition during non-operative periods of the frictional feeding rollers. i

2. In an imprinting apparatus of the type wherein a continuous strip of material is progressively advanced through a step-by-step movement past an imprinting position, a pin type feeding device engageable in longitudinally spaced holes in the strip, coacting frictional feed rollers operative to advance record material past an imprinting position alternately with the pin 4 operation of the pin type feeding device.

3. In an imprinting apparatus of the type wherein a continuous strip of record material is progressively advanced past a record making position by frictional feeding means engageable therewith, a pin type feeding device engageable in longitudinally spaced holes in the strip to advance the stripduring inoperative periods of the frictional feeding means, actuating means common tothe frictional ceding means and to the pin type feeding devicf, a throwout device havingadjustment wherein the frictional feeding means and the actuating alternate positions third inch each by a friction rolier,-the periphery of which is a multiple of one-third inch actuated by a synchronous rotary actuating device, including a rotary-pin wheel feeding device, the periphery of which is a multiple of one-half inch actuated by said rotary actuating device, and intermediate speed changing means by which the pin wheel feeding device is actuated differentially by the said rotary actuating device to advance the strip through successive steps of one-third inch each by said pin wheel feed device.

6. An imprinting apparatus of the type wherein a frictional feed roller, the periphery of which is a multiple of one-third of an inch, is initially actuated through successive equal partial rotations to advance a. strip of'material past a record making position through step-by-step movements feeding device actuated by rotation of of one-third inch each, by an actuating device operative in synchronism with the rotation of the roller characterized by a substitute pin wheel feeding device, the periphery of which is'a multiple of one-half inch, replacing the frictional feed roller and actuated by the frictional roller actuating device and intermediate speed change mechanism for driving the pin wheel device differentially with'the actuating device through successive step by step peripheral movements of onethird inch each.

7. In an imprinting apparatus of the type wherein a continuous strip of material is progressively advanced past a record making posi tion-through a step-by-step movement of predetermined extent and intermittently arrested with succeeding predetermined areas thereof in registry with such record making position, including a shaft, a sleeve concentrically journaledon said shaft for relative revoluble movement, a pin type the sleeve and having engagement with the strip to advance the strip through successive movements; a gear a pinion carried by the sleeve, a gear pinion of difmeans are simultaneously operative and simultaneously inoperative respectively and having an intermediate position wherein the frictional feeding means is inoperative and the actuating means is operative, and means to hold the throw. out device in such intermediate position during periods of operation of the pin type feedingdevice.

4. In an imprinting apparatus of the type wherein a continuous strip of record material is progressively advanced past a record making position by frictional feeding means engageable therewith, a pin type feeding device engageable in longitudinally spaced holesin thestrip to advance the strip during inoperative periods of the frictional feeding means, actuating means common to the frictional feeding means and to.

the pin type feeding device, a throwout device common to the actuating means and the fric-' tional feeding means having different positions of adjustment, in one of which theactuating means and frictional feeding means are both rendered operative, and in another of which the actuating means and the frictional feeding means are both rendered operative, and a different posi-'- tion wherein the actuating means is rendered operative and the frictional feeding means is rendered inoperative during periods of feeding operation of thefpin type feeding device.

5. In an imprinting apparatus of the type wherein a continuous'strlp of material is progressively advanced past a record making posiferent size carried by the shaft, and a common idler-gear with which both said pinions mesh for transmitting movement from the shaft to the I sleeve ata different rate of rotation, and means for transmitting motion to said shaft.

8. In an imprinting apparatus of the type wherein a continuous strip of material is-pro-, gressively advanced past a record making position through a step-by-step movement of predetermined extent and intermittently arrested with succeeding predetermined areas thereof in regtion through step-by-step increments of oneistry with such record making position, including a concentrically arranged shaft and sleeve capable of relative rotation, a pin type feeding device actuated by the rotation of the sleeve for advancing the strip predetermined distances, motion transmitting means for differentially rotating the sleeve by the rotation of the shaft, and means for rotating the'shaft through predetermined degree of rotation.

9. In animprinting apparatus of the type wherein a continuous strip of material is progressively advanced past a record making position through a step-by-step movement of predetermined extent and intermittently arrested with succeeding predetermined areas thereof in registry with such record making position, including a concentrically arranged shaft and sleeve capable of relative rotation, a pin type feeding device actuated by the rotation of the sleevefor advancing the strip predetermined distances, actuating means for rotating the shaft through successive partial rotations which are even fractional portions of a complete rotation,

and motion transmitting means for transmitting such motion to the sleeve by which the sleeve is actuated through an uneven fractional portion of a complete rotation.

10. In an imprinting apparatus of the type wherein a continuous strip of material is progressively advanced past a record making position through a step-by-step movement of predetermined extent and intermittently arrested with succeeding predetermined areas thereof in re try with such record making position, including a rotary pin wheel strip feeding device actuated through successive partial rotations which are an uneven division of a complete rotation, an actuating device therefor also actuated through successive partial rotations which are an even division of a complete rotation, and synchronizing means-for effecting unison operation of the pin wheel strip feeding device by the 1 operation of the actuating device to advance the strip a predetermined distance at each operation.

11. In an imprinting apparatus of the type wherein a continuous strip of material is progressively advanced past a record making position through a step-by-step movement of predetermined extent and intermittently arrested with succeeding predetermined areas thereof in registry with such record making position, including two differentially operable rotary members, one of which is operable through an even division of a complete rotation at each operation, and the other of which is operable through an uneven division of a complete rotation at each operatic interconnecting motion transmitting means effecting unison actuation of said members, a pin type feeding device actuated by movement of one of said members having engagement with the strip to advance the strip a prescribed distance at each operation, and actuating means operatively connected with the other of said members for transmitting motion simultaneously to both members. 12. An offset imprinting apparatus wherein a record bearing strip having thereon a succession of longitudinally spaced inscribed legends to be reproduced is progressively advanced through a step-by-step movement past a conditioning and transfer position at which a pressure imprinting device effects transfer of preconditioned inscriptions on the record strip to a contacting record receiving body characterized by a combined friction and pin feed roller including a cylindrical tenacious frictional feeding section and a pin wheel section axially aligned with each other and connected for unison rotation, actuating means common to the frictional and pin wheel feeding operations, and throwout means for rendering the frictional feeding section inoperative during periods of operation of the pin wheel section.

. 13. In an offset printing apparatus of the type wherein a continuous record strip having thereon a succession of longitudinally spaced legends to be reproduced is progressively advanced past a transfer position at which the legends are successively transferred to a contacting record receiving body,

the herein described method of transforming such apparatus from feeding apparatus, including substituting for a frictional roller therein, the periphery of which is a multiple 0" one-third inch, a pin wheel device,

the periphery of which is a multiple of one-half inch, and driving the pin wheel at a different speed from that at which the roller was previously driven to achieve peripheral travel movement of, the wheel equal to that of the roller at each opera tion.

14. An offset printing apparatus of the type wherein a continuous record strip having thereon a succession of longitudinally spaced legends to be reproduced is progressively advanced by a frictional feeding device past a transfer position at which the legends are successively transferred to a contacting record receiving body including an intermittently operated driving mechanism, a pin type feeding device having progressive engagement in longitudinally spaced holes in a strip of material to advance the strip independently of the frictional feeding means during inoperative periods of the latter, and power transmission means for driving the pin type feeding device differentially relative to the said driving mechanism.

15. In an imprinting machine, frictional strip feeding devices for progressively advancing a continuous strip of material past a record making position, actuating means therefor, an adjustable control member common to the strip feeding devices and the actuating means, by which the strip feeding devices and actuating means therefor are both rendered operative when said control member is in one position of adjustment and by which the strip feeding devices and the actuating means therefor are both rendered inoperative when the control member is in an alternate position, means for maintaining said control means in an intermediate position wherein the actuating means is operative and the friction feed devices inoperative, and a positive pin type feeding device operative to advance the strip when the control means is in said intermediate position.

16. An imprinting apparatus, optionally selective frictional strip feeding means and pin type strip feeding means for progressively advancing a continuous strip of material past an imprinting position, actuating means common thereto, and an adjustable control common to the respective strip feeding means and to the actuating means, the construction and arrangement being such that by adjustment of the control means through a portion of its range of movement one of the feeding means will be disabled while the other remains in operative condition without affecting the actuating means, and by a further adjustment of the control means the actuating means will be rendered inoperative.

17. In an imprinting apparatus, strip feeding means including a drive shaft, actuating means for advancing the shaft through successive partial rotations, a sleeve revolubly mounted on said shaft frictional feeding to pin type for differential unison rotation, a strip engaging device carried by the sleeve, a motion transmitting gear train including a gear pinion carried by the sleeve, a gear pinion having a different number of teeth rotating in unison with the shaft, and an idler gear having simultaneous intermeshing engagement with both said pinions, the construction and arrangement being such that the sleeve and strip engaging device carried thereby are actuated diflerentially relative to the shaft, to advance the engaged strip measured distances.

18. In an imprinting apparatus of the type wherein initially a frictional strip engaging roll is actuated by coacting synchronous actuating means through successive partial rotations of predetermined extent to advance a strip of material prescribed distances, a substitute rotary strip engaging device replacing the strip engaging roll operable through successive partial rotations of diilerent extent from those of the replaced strip engaging roll for advancing the strip distances equal to the prescribed distances through which it is advanced by the mentioned strip roll, and motion transmitting means for actuating the substitute strip engaging device by the original frictional roll actuating means at a different rate from that at which it previously advanced the original frictional strip engaging roll.

19. In a strip feeding apparatus, a tubular shaft for telescopic engagement over a drive shaft, a pair of relatively spaced axially adjustable pin wheels carried by the tubular shaft, a frictional roller carried by the tubular shaft intermediate the pin wheels, and a gear pinion carried by the tubular shaft at one end thereof, a gear pinion having a different number of teeth rotating in unison with the drive shaft, and an idler gear common to both the pinions by which differential rotary motion is transmitted from the drive shaft to the tubular shaft and pin wheels and frictional roller carried thereby.

20. In a strip feeding apparatus, a drive shaft, actuating means for rotating the shaft through successive partial rotations of predetermined extent, a pin wheel mounted on said shaft for differential rotation in the same direction as the shaft and engageable in longitudinally spaced holes in a strip of material for advancing the strip prescribed distances,-

rotations of different extent.

, 21. An imprinting apparatus of the type wherein a frictional feed roller is actuated through successive partial rotations comprising equal parts of a complete rotation to advance a strip of material prescribed distances by an actuating means therefor operative in synchronism with the rotation of the roller, characterized by a substitute pin wheel feeding device engageable in longitudinally spaced holes in the strip of material to advance the strip distances equal to the advancement thereof by the frictional roller, and motion transmitting means common to the frictional roller and to the pin wheel device for advancing the pin wheel through successive equal partial rotation of different degree from the partial rotations of the frictional roller and comprising disproportionate parts of a complete rotation;

ALBERT W. METZNER.

and motion transmitting means for actuating the pin wheel in unison with the rotation of the shaft through partial 

